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Semtech Corporation 1N5622C.TR
- Part No.:
- 1N5622C.TR
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
1N5622C.TR.pdf
- Description:
- DIODE AVALANCHE 1KV 2A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,768
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Product details
Overview
1N5622C.TR from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection on 22V DC power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance. It protects USB PD, Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N5622C.TR datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world clamping stability across temperature and current, and validated alternatives for 22V bus protection design.
Technical Context
The 1N5622C.TR uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant-27.5–28V-from 24A to 40A and across –40°C to +125°C due to decreasing RDS(on) under surge.
It operates with a 22V reverse stand-off voltage (VRWM), 25–27.9V breakdown (VBR), and only 130–600nA leakage at VRWM, enabling low-power system compatibility. Its 175pF junction capacitance at 22V/1MHz supports high-speed line protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-Off Voltage | 22 V - Maximum continuous operating voltage before triggering; matches 20V USB PD nominal + margin. |
| Clamping Voltage (40A, 8/20μs) | 27.5–28 V - Stable over full surge range; stays below 30V damage threshold of most 24V-rated controllers. |
| Peak Pulse Current | 40 A - Withstands IEC 61000-4-5 Level 4 surges (±1kV, 42Ω source); enables single-device industrial-grade protection. |
| Dynamic Resistance | 20 mΩ - Enables flat clamping curve; reduces voltage overshoot during fast-rising transients vs. TVS diodes. |
| Junction Capacitance | 175 pF @ 22V, 1MHz - Low enough for USB PD VBus and load switch input; avoids signal distortion or timing skew. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds Level 4 requirements; eliminates need for cascaded ESD stages. |
Pinout & Package
1N5622C.TR is housed in a RoHS-compliant DFN-6 package (1.6 mm × 1.6 mm × 0.55 mm) with exposed thermal pad not required-energy is dissipated in the FET channel, not the junction. All six terminals are electrically grouped: three GND pins (1–3) and three IN pins (4–6), requiring parallel connection for rated 40A performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three must be connected with low-inductance routing to maximize surge current handling. |
| 4, 5, 6 | IN | Protected line input (e.g., USB PD VBus); parallel connection ensures uniform current sharing and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <0.5V from 24A to 40A-enables predictable protection margin without overdesign. |
| Temperature-stable clamping | Clamps at ~27.6V from –40°C to +125°C-eliminates derating calculations for wide-temperature deployments. |
| Low dynamic resistance | 20mΩ RDYN minimizes IR drop during surge-delivers tighter voltage control than TVS diodes (typically >100mΩ). |
| High-energy surge rating | 1120W peak pulse power (8/20μs)-supports repeated lightning-surge events per IEC 61000-4-5 without degradation. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the 20V–22V VBus line in USB Type-C ports supporting Power Delivery up to 100W. IC Role / Device Role / Timing Role: Primary high-energy EOS suppressor placed at connector entry point, upstream of PD controller and load switch. Use Value: Maintains 27.6V clamping at 40A and 125°C-prevents latch-up or gate oxide failure in PD controllers rated for ≤30V absolute max. |
Use Scenario: Safeguarding the input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT edge nodes. IC Role / Device Role / Timing Role: Front-end transient shunt that limits voltage seen by the load switch's internal FET during lightning-induced surges. Use Value: Keeps clamping voltage below the 30V drain-source breakdown of common 30V load switches-avoids catastrophic FET failure. |
| USB-C Docking Station Power Rail | Smart Factory Sensor Hub Power Input |
Use Scenario: Securing the main 20V input rail in multi-port USB-C docking stations handling simultaneous video, data, and charging. IC Role / Device Role / Timing Role: Single-point, high-current surge diverter for shared VBus distribution network feeding multiple downstream converters. Use Value: 40A rating handles coupled surges across multiple ports; 175pF capacitance avoids interference with USB SS signaling on adjacent traces. |
Use Scenario: Protecting 24V DC input rails in IP67-rated sensor hubs deployed in harsh industrial environments with frequent EFT exposure. IC Role / Device Role / Timing Role: Robust front-end protector against 4kV EFT bursts (IEC 61000-4-4) and 1kV ring waves on factory power feeds. Use Value: ±4kV EFT immunity and stable clamping ensure uninterrupted operation during electromagnetic noise events in PLC-controlled facilities. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Standard unidirectional TVS diode; 35.1V clamping at 12.4A (8/20μs); higher dynamic resistance (~150mΩ); VRWM = 22V. | Lower surge rating (12.4A vs. 40A); clamping rises to ~42V at 125°C-requires voltage margin planning. | Choose for cost-sensitive, lower-energy applications where 12.4A IPP suffices and temperature variation is limited. |
| TDS2211P.C | Same die, identical specs, but in tape-and-reel packaging (3,000 pcs/reel); marked "T22" + date code; DFN-6 footprint identical. | No functional difference; used interchangeably in production-only packaging and marking differ. | Select for volume manufacturing; 1N5622C.TR is functionally identical and pin-compatible. |
Compared with SMAJ22A, 1N5622C.TR delivers 3.2× higher surge current handling and thermally stable clamping-critical for USB PD and industrial loads. Against TDS2211P.C, it is a direct functional match with identical electrical behavior and mechanical form factor.
Availability
1N5622C.TR is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and smart factory sensor hub designs requiring stable component supply, high-reliability surge immunity, and compact 1.6×1.6mm footprint.
Supply support for 1N5622C.TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The TDS family-including 1N5622C.TR-is engineered specifically for high-energy EOS protection in next-generation power interfaces, replacing traditional TVS diodes with FET-based clamping for superior current-handling and thermal stability.
FAQ
What is the maximum continuous operating voltage for 1N5622C.TR?
The 1N5622C.TR has a reverse stand-off voltage (VRWM) of 22 V, meaning it can safely operate continuously at up to 22 V DC without triggering. This aligns precisely with USB PD 20 V nominal + 10% tolerance and industrial 24 V rail derating requirements. Operation above 22 V risks premature conduction and accelerated wear.
Does 1N5622C.TR require a thermal pad on the PCB?
No, the 1N5622C.TR does not require a thermal pad. Unlike conventional TVS diodes that dissipate energy in the PN junction, the 1N5622C.TR uses a surge-rated FET whose energy is dissipated in the channel. The datasheet explicitly states no thermal pad is needed-ground connections via pins 1–3 suffice for full 40 A surge capability.
How does 1N5622C.TR compare to standard TVS diodes in clamping stability?
The 1N5622C.TR maintains clamping voltage within 27.5–28 V from 24 A to 40 A and across –40°C to +125°C. In contrast, a typical 22 V TVS (e.g., SMAJ22A) sees clamping rise from ~35 V at 25°C to ~42 V at 125°C-and increases linearly with current due to fixed dynamic resistance. This makes 1N5622C.TR far more predictable in real-world thermal and surge conditions.
Can 1N5622C.TR protect high-speed data lines like USB SuperSpeed?
No, the 1N5622C.TR is not intended for USB SuperSpeed (TX/RX) or other high-frequency signal lines. Its 175 pF junction capacitance would severely degrade signal integrity. It is optimized for VBus, CC, SBU, and power-line protection. For SuperSpeed lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF).
Is 1N5622C.TR pin-compatible with TDS2211P.C?
Yes, 1N5622C.TR is pin-compatible and functionally identical to TDS2211P.C. Both use the same DFN-6 package (1.6 mm × 1.6 mm), identical pinout (pins 1–3 = GND, pins 4–6 = IN), and share identical electrical specifications-including 22 V VRWM, 40 A IPP, and 27.5–28 V clamping. Only packaging format and marking differ.
1N5622C.TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Avalanche
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 500 nA @ 1000 V
- Capacitance @ Vr, F:
- 23pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -65°C ~ 175°C
1N5622C.TR FAQ
1.How can I place an order for 1N5622C.TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5622C.TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N5622C.TR reliable?
The price and inventory of 1N5622C.TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5622C.TR is usually 5 days.
3.What payment methods are accepted for 1N5622C.TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5622C.TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5622C.TR?
1N5622C.TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5622C.TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N5622C.TR?
For technical support, including 1N5622C.TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5622C.TR requirements.
6.How does Aetrix verify that 1N5622C.TR is sourced from the original manufacturer or authorized distributors?
All 1N5622C.TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N5622C.TR meets industry standards.
7.What is the process for return or replacement of 1N5622C.TR?
All 1N5622C.TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5622C.TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N5622C.TR part is unused and in its original packaging.
Return procedure for 1N5622C.TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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